GMKtec G3 Plus Mini PC User Manual

Introduction

Welcome to the GMKtec G3 Plus Mini PC user manual. This document provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your new mini desktop computer. The GMKtec G3 Plus is a compact and powerful PC designed for a variety of tasks, from routine office work and home entertainment to more demanding applications.

What's in the Box

Your GMKtec G3 Plus Mini PC package includes the following items:

• GMKtec Nucbox G3 Plus Mini PC 8GB RAM 256GB
• VESA Mount with Screws
• HDMI Cable
• Power Adapter
• User Manual

Figure 1: Contents of the GMKtec G3 Plus Mini PC retail packaging.

Product Overview & Specifications

The GMKtec G3 Plus Mini PC is equipped with the latest Intel Twin Lake N150 processor, offering enhanced performance for daily computing needs. Its compact design makes it ideal for various environments, supporting dual 4K displays for increased productivity.

Figure 2: Front view of the GMKtec G3 Plus Mini PC.

Key Features:

• Processor: 2025 Intel Twin Lake N150 CPU (4 Core, 4 Threads, 6MB cache, up to 3.6GHz)
• Memory: 8GB DDR4 RAM (expandable)
• Storage: 256GB PCIe 3.0 M.2 2280 NVMe SSD (expandable up to 2TB)
• Graphics: Upgraded Intel Graphics (max 1000MHz) with 4K video playback and AV1 decoding support
• Display Output: Dual HDMI 2.0 ports supporting 4K@60Hz displays
• Connectivity: WiFi 6 (802.11ax), Bluetooth 5.2, 2.5GbE RJ45 Gigabit Ethernet
• Ports: 4x USB 3.2 (up to 5Gbps/S), 2x HDMI (4K@60Hz), 3.5mm Audio Jack
• Operating System: Pre-installed Windows 11 Pro
• Additional Features: Supports Wake On LAN, PXE Boot, RTC Wake, Auto Power On

Figure 3: Detailed features of the GMKtec G3 Plus.

Detailed Specifications:

Figure 4: Front and rear port layout of the GMKtec G3 Plus.

Setup

To set up your GMKtec G3 Plus Mini PC, follow these steps:

1. Connect to Power: Plug the power adapter into the DC 12V 3A port on the back of the mini PC, then plug the adapter into a power outlet.
2. Connect to Display: Use the provided HDMI cable to connect your mini PC to a monitor or TV. The device supports dual 4K@60Hz displays via its two HDMI 2.0 ports.
3. Connect Peripherals: Plug in your USB keyboard and mouse into the available USB 3.2 ports.
4. Network Connection: For wired internet, connect an Ethernet cable to the 2.5GbE RJ45 LAN port. For wireless internet, the device supports WiFi 6.
5. Power On: Press the power button on the front of the mini PC. The system will boot into Windows 11 Pro.

Operating

The GMKtec G3 Plus Mini PC comes pre-installed with Windows 11 Pro, offering a familiar and user-friendly operating environment. It is also compatible with Linux and Ubuntu for users who prefer alternative operating systems.

Performance Overview:

• The Intel Twin Lake N150 processor provides a performance improvement over previous generations, making it suitable for routine tasks, office work, and home entertainment.
• The 8GB DDR4 RAM and 256GB NVMe SSD ensure quick boot times, smooth multitasking, and fast file transfers.
• The 2.5GbE Ethernet port offers significantly faster wired network speeds compared to standard Gigabit Ethernet.
• While Wi-Fi performance is good, wired connections will provide optimal speeds for demanding network tasks.

Video Playback & Encoding:

The integrated Intel Graphics support 4K video playback and AV1 decoding, making it suitable for home theater setups and media consumption. The system can also handle video encoding tasks efficiently, making it a viable option for media servers like Plex.

Figure 5: Official product video showcasing the GMKtec G3 Plus.

Dual Booting (Windows & Linux):

For advanced users, the GMKtec G3 Plus supports dual booting. You can install a second operating system like Ubuntu Linux on the additional M.2 2242 SATA slot. The system's BIOS/UEFI firmware allows for easy selection of the desired operating system at boot time.

Maintenance

Regular maintenance can help ensure the longevity and optimal performance of your GMKtec G3 Plus Mini PC.

• Software Updates: Regularly install operating system updates and driver updates to ensure stability and security.
• Dust Removal: Periodically clean the cooling vents to prevent dust buildup, which can hinder airflow and lead to overheating.
• Storage Management: Monitor your storage usage and free up space by deleting unnecessary files or uninstalling unused applications.
• Thermal Management: While the device features a quiet cooling fan, ensure it is placed in a well-ventilated area to prevent thermal throttling during heavy loads.

Figure 6: Internal components and cooling system of the GMKtec G3 Plus.

Troubleshooting

If you encounter issues with your GMKtec G3 Plus Mini PC, try the following troubleshooting steps:

• No Display: Ensure the HDMI cable is securely connected to both the mini PC and the monitor. Try a different HDMI port or cable. Verify the monitor is set to the correct input source.
• Power Issues: Check if the power adapter is properly connected and the power outlet is functional. Try a different power outlet.
• Slow Performance: Close unnecessary applications. Check for background processes consuming high CPU or RAM. Ensure sufficient free storage space.
• Network Connectivity Issues: For wired connections, check the Ethernet cable and router. For Wi-Fi, ensure the device is within range of the router and try restarting the router.
• Overheating: Ensure the mini PC is placed in an area with good airflow. Clean any dust from the vents.

Warranty & Support

GMKtec offers a 1-year limited warranty for each mini PC, starting from the date of purchase. All defects due to design and workmanship are covered. For support, you can:

• Contact GMKtec-Shop on Amazon: Log in to your Amazon account, go to Your Orders, and ask a product question.
• Send E-mail to After-Sales Team: support@gmktec.com
• 24/7 Customer Support: Available for your needs.